After a wet summer, the declaration of catastrophic fire danger across parts of Victoria on Wednesday seemed to come out of the blue. After all, February is almost over. Hasn’t the worst of the fire risk passed?

As University of Tasmania fire expert David Bowman writes today, climate change means we must always expect the unexpected. “In a fire-prone continent such as Australia, we can never relax in a warming world,” Bowman writes. “We must be in a constant, heightened state of preparedness.”

You may also have noticed unusually intense weather events across Australia of late – not just fires but storms, floods and heatwaves. Today, more than 30 of Australia’s leading climate scientists have released a report analysing ten major weather events in 2023.

We don’t yet know the extent to which climate change contributed to these events. But we can expect more of the same disruptions – and worse – as Earth keeps getting hotter.

Nicole Hasham

Energy + Environment Editor

Victoria’s fire alert has knocked Australians out of complacency. Under climate change, catastrophic bushfires can strike any time

David Bowman, University of Tasmania

Many Australians probably thought the worst of the bushfire season was over. But climate change is bringing not just more frequent and severe fires, but longer fire seasons.

What we know about last year’s top 10 wild Australian climatic events – from fire and flood combos to cyclone-driven extreme rain

Laure Poncet, UNSW Sydney; Andrew King, The University of Melbourne

Last year was the hottest in recorded history. That heat led to a range of unusually intense weather events across Australia.

Pope Gregory XIII gave us the leap year – but his legacy goes so much further

Darius von Guttner Sporzynski, Australian Catholic University

Pope Gregory XIII was patron of Rome’s renaissance, and a legal luminary whose influence transcends the ages.

Leap of imagination: how February 29 reminds us of our mysterious relationship with time and space

Emily O'Hara, Auckland University of Technology

2024 is a leap year, when the shortest month mops up a bit of leftover time. But the extra day also tells us about space – and our place in it.

With the end of Newshub, the slippery slope just got steeper for NZ journalism and democracy

Greg Treadwell, Auckland University of Technology

It’s been 35 years since Aotearoa New Zealand’s first private network brought real competition in the television news market. Yesterday Warner Bros Discovery announced an end to all that.

‘Naked carbs’ and ‘net carbs’ – what are they and should you count them?

Saman Khalesi, CQUniversity Australia; Anna Balzer, CQUniversity Australia; Charlotte Gupta, CQUniversity Australia; Chris Irwin, Griffith University; Grace Vincent, CQUniversity Australia

All carbs need to be broken down by our digestive enzymes to be absorbed. Digestion of complex carbs is a much slower process than simple carbs, leading to a more gradual blood sugar increase.

Should you be checking your kid’s phone? How to know when your child is ready for ‘phone privacy’

Joanne Orlando, Western Sydney University

Is it reasonable to occasionally inspect a 13- or 14-year-old’s device, or does this undermine a new sense of privacy at this stage?

Independent MP Helen Haines has a plan to stamp out pork-barrelling. Would it work?

Yee-Fui Ng, Monash University

The private member’s bill is unlikely to get through, but it raises important points about the scourge of pork-barrelling in Australian politics.

Dutton wants a ‘mature debate’ about nuclear power. By the time we’ve had one, new plants will be too late to replace coal

John Quiggin, The University of Queensland

Small modular reactors are popular among conservative politicians and supposedly the Australian public. But they’re nowhere near ready to power Australia in time to replace coal-powered stations.

What ended the ‘dark ages’ in the early universe? New Webb data just brought us closer to solving the mystery

Themiya Nanayakkara, Swinburne University of Technology

With the help of a magnifying glass 4 million lightyears wide, astronomers may have solved the riddle of what burned away the hydrogen fog that pervaded the early universe.

Politics + Society

Health + Medicine

Environment + Energy

  • We can’t say yet if grid-breaking thunderstorms are getting worse – but we shouldn’t wait to find out

    Andrew Dowdy, The University of Melbourne; Andrew Brown, The University of Melbourne; Andrew King, The University of Melbourne; Claire Vincent, The University of Melbourne; Michael Brear, The University of Melbourne; Pierluigi Mancarella, The University of Melbourne; Todd Lane, The University of Melbourne

    Extreme winds from thunderstorms have downed transmission towers from Victoria to Western Australia in recent years. What’s going on?

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